<template>
  <div>
    <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input
          v-model="form.name"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input
          v-model="form.code"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select
          v-model="form.manager"
          style="width: 80%"
          placeholder="请选择"
        >
          <!-- <el-option value="1" label="小美丽" />
          <el-option value="2" label="大漂亮" /> -->
          <el-option
            v-for="item in EmployeesList"
            :key="item.id"
            :value="item.username"
            :label="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="form.introduce"
          style="width: 80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="$emit('close')">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import { getEmployeesSimple } from '@/api/employees'
import { addDepartments, getDepartmentsDetail, updateDepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log(value, 'value')
      console.log(this.originList, 'this.originList')
      let existCodeList = this.originList.map(item => item.code)
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log(existCodeList)
      if (existCodeList.includes(value)) {
        // 存在,抛出错误,提示用户编码已存在
        callback(new Error(`部门编码:${value}已经存在`))
      } else {
        callback()
      }
      callback()
    }
    // 自定义校验规则,校验部门名称的唯一性
    const validName = (rule, value, callback) => {
      // 遍历数组到子部门，通过筛选id和pid相等
      // 在遍历找到子部门的部门名称
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      if (this.isEdit) {
        // 所有不能的数据 originList
        // 所有部门中找到当前编辑的部门数据对象
        const curDepartment = this.originList.find(item => item.id === this.id)
        const pid = curDepartment.pid
        // 所有的兄弟部门的pid是一样的,找到所以兄弟 包括了自己
        const brothers = this.originList.filter(item => item.pid === pid)
        // 排除自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      console.log(existNameList)
      if (existNameList.includes(value)) {
        // 说明存在，抛出一个错误
        callback(new Error(`部门名称：${value} 已经存在`))
      } else {
        // 放行
        callback()
      }
    }
    return {
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍

      },
      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度1-50的字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度1-50的字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入长度1-300的字符', trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请输入部门负责人', trigger: ['blur', 'change'] }

        ]

      },
      EmployeesList: [] // 负责人列表

    }
  },
  watch: {
    // 方法三:使用watch侦听的问题
    // id: function(newVal, oldVal) {
    //   this.loadDepartmentDetail()
    // }
    // 开启深度侦听
    // 'id': {
    //   deep: true, // 开启深度侦听
    //   immediate: true, // 组件一加载就执行
    //   handler(newVal, oldVal) {
    //     this.loadDepartmentDetail()
    //   }
    // }
  },
  created() {
    this.loadEmployeesSimple()
    if (this.isEdit) {
      // 编辑
      this.loadDepartmentDetail()
    }
  },
  methods: {
    resetForm() {
      // 重置表单和规则
      this.$refs.deptForm.resetFields()
    },
    // 获取部门详情
    async loadDepartmentDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log(res, 'getDepartmentsDetail')
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 需要完成兜底校验,假设通过效验
    // 实现新增子部门
    hSubmit() {
      // 都说了没调用
      // this.isEdit编辑操,新增操作
      this.$refs.deptForm.validate(valid => {
        if (!valid) return // 效验失败
      })
      this.isEdit ? this.doAdd() : this.doEdit()
    },
    async doEdit() {
      try {
        const res = await updateDepartments(this.form)
        console.log(res, 'updateDepartments')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.manager)
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'addsss')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.manager)
        // 重新渲染列表数据,关闭弹层
        // 子传父
        this.$emit('success')
      } catch (error) {
        console.log(error)
        this.$$message.error(error)
      }
    },
    // 获取部门负责人数据
    async loadEmployeesSimple() {
      try {
        const res = await getEmployeesSimple()
        console.log(res, 'getEmployeesSimple')
        if (res.code === 10000) {
          this.EmployeesList = res.data
        }
      } catch (error) {
        console.log(error)
        this.$message.error('error')
      }
    }
  }
}

</script>
